nanocore | f089621fa865a1406a660945a8376953b51dee4e39b1d7cde0ca17b27a0ac7eb

General

Target
d703b3cc46820009bb6c4ab14666ea9e.exe
Size 1.1MB
Sample210823-b6sbdn3c4e
SHA256 f089621fa865a1406a660945a8376953b51dee4e39b1d7cde0ca17b27a0ac7eb
MD5 d703b3cc46820009bb6c4ab14666ea9e
SHA1 d4180c699f8f7fc340854dcb66cbb37c7b7584cd
SHA512 a5b8f8af1b55b6c102e22d386cd637c56951284ca31310e9adb0c45464e20b83306e082ef4b395302e1b0f7c6e9d86477284bdde0f7605d96239f2619c3b3530
MD5 SHA1 SHA512

Score

10^/10

nanocore agilenet evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

rebornx.duckdns.org:7744

Mutex

77e2bfe5-f7e0-4fab-a9ff-9902b347ae92

Attributes

activate_away_mode
true
backup_connection_host
rebornx.duckdns.org
backup_dns_server
buffer_size
65535
build_time
2021-02-14T00:06:22.574821336Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
7744
default_group
REBORN
enable_debug_mode
true
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
77e2bfe5-f7e0-4fab-a9ff-9902b347ae92
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
rebornx.duckdns.org
primary_dns_server
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

Executes dropped EXE 1 IoCs

pid	Process
1840	RegAsm.exe

Loads dropped DLL 2 IoCs

pid	Process
1304	d703b3cc46820009bb6c4ab14666ea9e.exe
1840	RegAsm.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral1/memory/1304-63-0x0000000002250000-0x0000000002271000-memory.dmp	agile_net

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\LAN Host = "C:\\Program Files (x86)\\LAN Host\\lanhost.exe"	RegAsm.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1304 set thread context of 1840	1304	d703b3cc46820009bb6c4ab14666ea9e.exe	29

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\LAN Host\lanhost.exe	RegAsm.exe
File created	C:\Program Files (x86)\LAN Host\lanhost.exe	RegAsm.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C	d703b3cc46820009bb6c4ab14666ea9e.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	d703b3cc46820009bb6c4ab14666ea9e.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 190000000100000010000000a823b4a20180beb460cab955c24d7e21030000000100000014000000b1bc968bd4f49d622aa89a81f2150152a41d829c1d00000001000000100000006ee7f3b060d10e90a31ba3471b999236140000000100000014000000607b661a450d97ca89502f7d04cd34a8fffcfd4b0b000000010000001600000047006c006f00620061006c005300690067006e0000005300000001000000230000003021301f06092b06010401a032010130123010060a2b0601040182373c0101030200c0090000000100000068000000306606082b0601050507030106082b0601050507030206082b0601050507030306082b0601050507030406082b0601050507030806082b06010505070309060a2b0601040182370a030406082b0601050507030606082b0601050507030706082b060105050802020f00000001000000140000005a6d07b6371d966a2fb6ba92828ce5512a49513d200000000100000079030000308203753082025da003020102020b040000000001154b5ac394300d06092a864886f70d01010505003057310b300906035504061302424531193017060355040a1310476c6f62616c5369676e206e762d73613110300e060355040b1307526f6f74204341311b301906035504031312476c6f62616c5369676e20526f6f74204341301e170d3938303930313132303030305a170d3238303132383132303030305a3057310b300906035504061302424531193017060355040a1310476c6f62616c5369676e206e762d73613110300e060355040b1307526f6f74204341311b301906035504031312476c6f62616c5369676e20526f6f7420434130820122300d06092a864886f70d01010105000382010f003082010a0282010100da0ee6998dcea3e34f8a7efbf18b83256bea481ff12ab0b9951104bdf063d1e26766cf1cddcf1b482bee8d898e9aaf298065abe9c72d12cbab1c4c7007a13d0a30cd158d4ff8ddd48c50151cef50eec42ef7fce952f2917de06dd535308e5e4373f241e9d56ae3b2893a5639386f063c88695b2a4dc5a754b86c89cc9bf93ccae5fd89f5123c927896d6dc746e934461d18dc746b2750e86e8198ad56d6cd5781695a2e9c80a38ebf224134f73549313853a1bbc1e34b58b058cb9778bb1db1f2091ab09536e90ce7b3774b97047912251631679aeb1ae412608c8192bd146aa48d6642ad78334ff2c2ac16c19434a0785e7d37cf62168efeaf2529f7f9390cf0203010001a3423040300e0603551d0f0101ff040403020106300f0603551d130101ff040530030101ff301d0603551d0e04160414607b661a450d97ca89502f7d04cd34a8fffcfd4b300d06092a864886f70d01010505000382010100d673e77c4f76d08dbfecbaa2be34c52832b57cfc6c9c2c2bbd099e53bf6b5eaa1148b6e508a3b3ca3d614dd34609b33ec3a0e363551bf2baefad39e143b938a3e62f8a263befa05056f9c60afd38cdc40b705194979804dfc35f94d515c914419cc45d7564150dff5530ec868fff0def2cb96346f6aafcdfbc69fd2e1248649ae095f0a6ef298f01b115b50c1da5fe692c6924781eb3a71c7162eecac897ac175d8ac2f847866e2ac4563195d06789852bf96ca65d469d0caa82e49951dd70b7db563d61e46ae15cd6f6fe3dde41cc07ae6352bf5353f42be9c7fdb6f7825f85d24118db81b3041cc51fa4806f1520c9de0c880a1dd66655e2fc48c9292669e0	d703b3cc46820009bb6c4ab14666ea9e.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1304	d703b3cc46820009bb6c4ab14666ea9e.exe
1304	d703b3cc46820009bb6c4ab14666ea9e.exe
1840	RegAsm.exe
1840	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1840	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1304	d703b3cc46820009bb6c4ab14666ea9e.exe
Token: SeDebugPrivilege	1840	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1304 wrote to memory of 1840	1304	d703b3cc46820009bb6c4ab14666ea9e.exe	29
PID 1304 wrote to memory of 1840	1304	d703b3cc46820009bb6c4ab14666ea9e.exe	29
PID 1304 wrote to memory of 1840	1304	d703b3cc46820009bb6c4ab14666ea9e.exe	29
PID 1304 wrote to memory of 1840	1304	d703b3cc46820009bb6c4ab14666ea9e.exe	29
PID 1304 wrote to memory of 1840	1304	d703b3cc46820009bb6c4ab14666ea9e.exe	29
PID 1304 wrote to memory of 1840	1304	d703b3cc46820009bb6c4ab14666ea9e.exe	29
PID 1304 wrote to memory of 1840	1304	d703b3cc46820009bb6c4ab14666ea9e.exe	29
PID 1304 wrote to memory of 1840	1304	d703b3cc46820009bb6c4ab14666ea9e.exe	29
PID 1304 wrote to memory of 1840	1304	d703b3cc46820009bb6c4ab14666ea9e.exe	29
PID 1304 wrote to memory of 1840	1304	d703b3cc46820009bb6c4ab14666ea9e.exe	29
PID 1304 wrote to memory of 1840	1304	d703b3cc46820009bb6c4ab14666ea9e.exe	29
PID 1304 wrote to memory of 1840	1304	d703b3cc46820009bb6c4ab14666ea9e.exe	29

C:\Users\Admin\AppData\Local\Temp\d703b3cc46820009bb6c4ab14666ea9e.exe
"C:\Users\Admin\AppData\Local\Temp\d703b3cc46820009bb6c4ab14666ea9e.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1304
- C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  "C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:1840

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Install Root Certificate

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1304-65-0x00000000042D0000-0x00000000042DB000-memory.dmp

Download

memory/1304-63-0x0000000002250000-0x0000000002271000-memory.dmp

Download

memory/1304-60-0x00000000000E0000-0x00000000000E1000-memory.dmp

Download

memory/1304-62-0x0000000004B90000-0x0000000004B91000-memory.dmp

Download

memory/1304-66-0x00000000043E0000-0x00000000043E1000-memory.dmp

Download

memory/1304-64-0x0000000004B91000-0x0000000004B92000-memory.dmp

Download

memory/1840-72-0x0000000075551000-0x0000000075553000-memory.dmp

Download

memory/1840-68-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1840-74-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1840-76-0x0000000000440000-0x0000000000445000-memory.dmp

Download

memory/1840-77-0x0000000000660000-0x0000000000679000-memory.dmp

Download

memory/1840-78-0x0000000000450000-0x0000000000453000-memory.dmp

Download

memory/1840-79-0x0000000005080000-0x0000000005081000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads